Jinn (Arabic: Ø§ÙØ¬Ùââ, al-jinn), also romanized as djinn or anglicized as genies (with the more broad meaning of spirits), are supernatural creatures in early Arabian and later Islamic mythology and theology. An individual member of the jinn is known as a jinni, djinni, or genie (Ø§ÙØ¬ÙÙ, al-jinnÄ«). They are mentioned frequently in the Quran (the 72nd sura is titled SÅ«rat al-Jinn) and other Islamic texts.
Once you tighten up and lose range of motion in your arms, it reduces stride length, which is difficult to get back without burning a lot of energy. While sprinting, it is important to get a full range of motion with the arms. Remember, speed is a product of stride length and stride frequency. Stride length and frequency are determined, in part, by the motion of the arms. If you are lazy or passive with your arm action, you are limiting your potential for speed.
Sprinting is a combination of acceleration, power, speed and technique. When you sprint, the fast twitch fibers in your muscles fire quickly and powerfully to drive explosive movement. While you canât build more fast-twitch fibers, you can make them stronger and more efficient. A good speed-training program will develop and combine all these aspects of the sport to make you a better sprinter.Here are some of things you can do to improve on your speed.